BOSTON – Single-family home sales in Bristol County, Mass. dropped 20 percent in October compared with the same period last year, The Warren Group said Tuesday.

The real-estate data firm reported 273 Bristol County houses sold in October, down from 343 during the same month in 2011.

Following the falling sales, the median Bristol County single-family sales price fell 11 percent in October compared with October 2011.

The median sale price dropped to $210,000 last month from $235,000 last October.

Bristol County was the only county in Massachusetts where sales volume fell in October. Statewide, single-family sales rose 21 percent year over year.

The median Massachusetts single-family sales price stayed flat in October at $270,000.

“Home sales for the first 10 months of the year have already surpassed sales in all of 2011," said The Warren Group CEO Timothy M. Warren Jr. about the strong statewide sales. “Record low mortgage rates, an improved economy and growing consumer confidence are boosting the housing market in Massachusetts and around the country.”

Condominium sales in Bristol County edged up 2 percent in October with 54 condominiums sold in compared with 53 last October.

The median sale price of condominiums sold in Bristol County rose 8 percent to $135,462.

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